Feeler mechanism for looms



l Sept. 14 1926'.

`l.. H. BROWN ET AL Filed March 50, 1926 2 Sheets-Sheet l /N l/EN TOD@f1- rm Sept. 14 1926. l1,599,806

L. H. BROWN ET AL FEELER MECHNISM FOR 'LOOMS Filed March 3Q, 1926 2sheds-sheet 2 aa 34' 33 MMUUIIUUHII'WFNHHN? MIM a? P 33 so Je# 2a 1 E? 0Egg 0 1.9.3

L9 A A J5 v 2218 als 5 v O G Patented Sept. I4, 1926.

UNITED STATES PnxlENTl OFFICE.

LARKIN H. BROWN, OE BEVERLY HILLS, LOS GELES, CALIFORNIA, AND GEORGE E.REPASS, OF KNOXVILLEQTENNES'SEE, ASSIGNORS TO DRAPER CORPORATION, OFBOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FEELER MECHANISM FOR LOOMS.

Application iled March 30, 1926; Serial No. 98,517.

This invention relates to feeler mechanisms for looms whereby theoperative condition of the loom is changed upon substantial exhaustionof the filling in the shuttle.

It is now the ordinary practice to provide fillin carriers with apreliminary winding of fil ing, or a bunch, so called, to cooperate witha feeler to call for a change in the loom operation, such, for instance,as replenishment of filling "or loom stoppage, when the feeler detects asubstantial exhaustion of the filling comprising the preliminarywindings or bunch. Since the feeler is to be controlled as to itsfunctional operation by the amount of filling remaining in thepreliminary windings or bunch, `much uncertainty results as to theamount of filling remaining on the filling carrier when replenishment iseffected. The amount of filling remaining on the filling carrierwhen itis ejected from the shuttle constitutes waste and for economic reasonsshould be as small as possible consistent with laying a full pick offilling in the shed under proper tension on the last flight of the.shuttle preceding replenishment. n One of the objects of the presentinvention, therefore, is to provide for a minimum amount of waste onfilling carriers when they are ejected from the shuttle, and to this endthe invention consists primarily in providing the filling carrier withtwo bunches, spaced apart longitudinally of the filling carrier, topermit the feeler to engage the filling carrierbetween the bunches on adetecting beat, and to be held from functional operation to call for achange of filling until one of the bunches has been depleted. Underthese conditions it is apparent that one of the bunches may be formed ofa predetermined amount to constitute the wastage remaining on thefilling carrier when it is ejected, while the other bunchlwillconstitute a reventer bunch to prevent the feeler from ca ling forachange of filling until the filling in the reventer bunch 'has beendepleted. In t ese respects the present application is a continuationinpart of a rior application Ib the same inventors, Seria No. 17 ,068,filed lll/larch 20,. 1925.

In accordance with the present invention, the filling carrier, as abovestated, is provided with a main or wastage bunch and a preventer bunch,separated longitudinally of the filling carrier to vprovide a spacebetween the bunches for engagement of the filling carrier or bobbin by aside sli ping feeler when the working supply of Alling between thebunches -has been depleted, the preventer bunch acting at such times toprevent side slipping movement of the feeler to call for a change offilling until the filling constituting the preventer bunch has beenwoven into the cloth, and thereupon, permitting the feeler tofunctionand call for a change of filling.

The invention and new features thereof will best be made clear from thefollowing description and the accompanying drawings of one good formthereof.

In the drawings:

Fig. 1 is a perspective view at the feeler Jide of a loom containing thepresent inven- Fig. 2 is a top plan view showing the re-l lation ofparts when the feeler engages a working supply of filling .between thebunches on the filling carrier;

Fig. 3 is a similar view showing the relation of parts when the fillingbetween the bunches has been depleted and the preventer bunch is actingto prevent side slipping movement of the feeler;

Fi 4 is a view similar to that of Fig. '3 showing the fillingv yon thepreventer bunch as having been partially exhausted but still acting toprevent side slipping movement of the feeler; and

' Fig. 5 is a view simliar to that of Fig. 4 showing the preventer bunchas having been exhausted and the feeler freed to its side slippingmovement.

In the form 0f the inventionherein shown the feeler is associated with atrain of mechanism for calling for replenishmentof filling when thefilling on the preventer bunch has been depleted, but the replenishingmechanism is not herein shown because the details thereof form no partof the present invention and such mec. auism may be of any usual orpreferred type now well' known.

lil

In accordance with the present invention, the eeler mey be ot the sideswipe type but of any usual character, and es herein shown the feeler isof the construction more fully illustrated andV described in theapplication.

of Brown t Repass, Serial No. 45,349, filedA properly boned, esindicated in Fig. 1, the

,July 22, i925, but in the present epplicem tion no claim is mede hereinfor the structural features' of the feelen'since such claims alreadyform the subject-metter of the pending application above mentioned.

The loom frame l. may be of any desired Construction, and rising Jrointhe usual transverse shaft is the erm 2 to which is pivoted et 3 theactuator i the rear end portion of which is provided with e housing 5having en. opening 6 into which muy be projected en operating memberherein con stituted as part connected to the cam til Jfollower..Pivotelly mounted on lugs F3 eirtending from the housing 5 is e, lever 9to which is connected the actuator 10, the other end portion of whichentends into the opening l1 in the ieeler stand. rlhese parts are hereinshown as of the seme type end con struction es those more fullyillustrated and described in the copending application above mentionedbut it is to be understood that so far as the present invention isconcerned, such transmitting mechanism lto cell for a, change of fillingunder functional opera,n tion of the Jfeeler may be of any suitablecharacter,

Extending from the loom freine is the shipper stand 12 to which issecured by e bolt 13 e bracket lll supporting the feeler stand Theieeler 16 has the toothed or roughened end portion 17 and is mounted onthe teeler stand 15 for movement towards and from the iront oft theloom. and also in a direction longitudinally of the shuttle. The teeler16 has the laterally extending portion 18, the toe lll-ot which isadepted to engage n stop. or lug 2O carried by the feeler stand.Connected to the leterel extension 1.8 is e. spring 2l which muy besecured et one end to the leterel extension by aA bend, es et 22, end'the other end of the spring moy be secured to e projection 23 et therear of the iieeler stond, the construction being such tliet the normnltendency of the spring 2l is to move the eeler rearwardly to its fullfeeling position and yet permit side swipe movement ofi the feeler.,

lt will not be necessary 4herein to more fully describe the constructionend operetion ot the ieeler lil since this mechanism is shown essubstantially the seme-es that in the :3o-pending application, Serial Nd45,349, end the structural details thereof form no part of the presentinvention, because so fer es the present invention is concerned anyiceler of the side swipe type may be used.

The ley 24 is provided with the usuel Loodsen shuttle bei; 25 for thereception ci the shuttle 2d in which the filling carrier 27 is mount-ed,and the front wall of the shuttle boxv is provided with en opening 28which registers with a similar opening 29 in the front well of theshuttle when the letter is construction being such that on e detectingbeat the l'eelerenter the shuttle and feel for the lling.

ln accordance with. the present invention, the filling carrier 27 isprovided with the usual heed 30 by which the filling carrier may bedetechebly held in the shuttle by the usuel holding' jews 3l carried bythe shuttle. The filling carrier 27 hns a mein or westege bunch offilling 32 which in the present instance is shown es wound upon thefillingv carrier 2l" adjacent the head thereof, and it also hes woundthereon e, preventer bunch 33 sepereted from the main or wastage bunch32 by e, space 34, Fig. 2, suiicient in extent to permit the end of theside swipe feeler to engage the filling cerrier between the bunches whenthe working supply of filling between the bunches has been withdrawn.

The feeler, in the present instance of the invention, is shown es of thetype wherein it is given its side swipe movement by the frontwsrdpressure et e surfece within the shuttle, such,'fory instance, as thesurface of the filling carrier 27, and when the filling between the twobunches hes been depleted and the ieeler engages the filling carrierbetween the bunches, the normal. tendency crt the frontwerd ressure ofthe filling carrier is to cel-use si e swipe movement o'i the teeler.(living, however, to the preventer bunch 33, o struction is presented tosuch side swipe movement, und such obstruction continues to be presentedto the eeler on detecting beats until such obstruction is removed. bdepletion of thc lling in the preventcr ldunch. in Fig. l the filling inthe preventer bunch is shown es partially depleted, but still theobstruction to the side swipe movement 1s p resented to the ieeler,until wheny the ilhng in the preventer bunch is entirely exhausted., esindiceted in 5, the feeler is freed to its side swipe movement toinitiate filling replenishment.

Since the :teeler pertelres of its side swipe movement when the illingin the preventer bunch here been depleted, it is obvious that the emountoit filling in the mein or westege bunch be oi predetermined amount andis preferably oi en amount sucient to per-- mit e lull length oi iillingto be luid in the shed under proper tension after. the filling in thepreventer bunch, has become exhausted. 'lihus the amount of wastegeremaining on the filling carrier when it is ejected from the shuttle canbe predetermined end miniw Sli] mized to an amount sufficient only top'ermit a full pick of filling to be laid in the shed under propertension on depletionof the preventer bunch.

Applicants believe themselves to be the first in the art to provide afeeler mechanism 'connection with such filling carrier having a main orwastage bunch and a preventer bunch spaced therefrom, a side slippingfeeler held from side slipping movement by the obstruction offered bythe preventer bunch until the filling thereof has been de leted,thereupon freeing the feeler to its si e slipy ping movement. It is tobe understood, of

course, that the filling constituting the main or wastage bunch andthepreventer bunch is continuous, so. that when the filling of thepreventer bunch has been depleted, the filling in the main or wastagebunch will be laid in the shed.

While the present invention 'has been described in connection with afilling carrier or bobbin having two bunches'wound thereon with a spacebetween, which is a simple and preferred form, yet it is to beunderstood that the filling carrier of the present invention may haveany desired number of bunches as more fully disclosed in the a'p-vplication Serial No. 17,068, before mentioned, and of which this is acontinuation in part.

lVhat is claimed is:

1. In a feeler mechanism for looms, thel when the main windings. arewithdrawn and-A be held from side slippmg movement on a detecting beatby the' preventer bunch until its depletion and thereupon be freed toitsside slipping movement.

2. In a !feeler mechanism for looms, the combination of a shuttle havinga filling carrier with service filling woundthereon and provided with amainl bunch or predetermined amount of filling constituting waste whenthe `filling carrier is eiected on replenishment of filling and apreventer bunch spaced from `the main bunch, a side slipping feelermounted to engage the filling carrier in the'space between the bunchesand held from side slipping on a detecting beat by the obstructionformed by the preventer bunchl until such obstruction is removed bydepletion of the preventer bunch.

3. In a feeler mechanism for looms, the combination of a shuttlehaving afilling carrier with filling wound thereon and provided with a maintbunch adjacent the head of the filling carrier and a preventer bunchspaced from the main bunch, a feeler having teeth which engage thefilling carrier between the'two bunches and is prevented from sideslipping along the lling carrier on a detecting beat by side contactwith the reventer bunch until the preventer bunc is depleted, and meanscontrolled by the feeler for effecting replenishment of filling.

4. In a feeler mechanism for looms, the combination of a shuttle havinga filling carrier with filling wound thereon and provided with a mainbunch constituting waste and a preventer bunch spaced from the mainbunch, a side slipping feeler mountedto engage the filling between thetwo bunches when a working supply occupies said space and to engage thefilling carrier: between the buncheswhen the filling in said space isdepleted, and means controlled by the feeler Ato effect replenishment offilling when the preventer bunch is depleted and the feeler 1s freed toits side 'slippinglmovement 5. yIn a feeler mechanism for looms, ythecombination of a shuttle having a filling carrier with filling woundthereon and provided with two bunches of filling in spaced relation, afeeler mounted at the front of the loom to enter the shuttle on adetecting beat to engage the filling carrier between the bunches whenthe filling between them is depleted, and means controlled by the feelerto effect replenishment of filling.

6. In a; feeler mechanism for looms, th Combination of a shuttle havinga filling carrier with filling wound thereon and provided With twobunches of filling, a feeler extending rearwardly from the front of theloom to entcrthe Shuttle and engage the filling carrier between the twobunches when the filling is nearly exhausted andmounted for sideslipping movement along the llin carrier by the frontward pressureof thelling carrier on a detecting beat but held from such movement by one ofsaid bunches until exhaustion thereof, and means controlled by thefeeler for effectingl a change in the loom operation. 7. A fillingcarrier or bobbin provided with filling and having two bunchesof fillingwound thereon which are exposed when the main filling winds arewithdrawn, said bunches of filling being separated by 'a space to permitthe end of a feeler to .engage the filling carrier or bobbin between thebunches.

8. A filling carrier` or bobbin' provided with filling and having a mainbunch of filling wound thereon adjacent the head of the filling carrieror bobbin and a preventer bunch separated longitudinally of the fillingcarrier or bobbin to provide a space between them forA contact o: thefilling carrier or bobbn by lthe end of a feeler when the main -ng Windshave been Withdrawn.

9. A ling carrier or bobbn provided with lng and having two bunches offilling Wound. thereon and separa'ed by a space 'to permit kthe end of aeeler to engage 'the filling carrier or bobbn bet-Ween the bunches whenthe main llng windings have been Withdrawn, the llng being continuousbetween the bunches.

In testimony whereof, we have signed our names to this speecaton.

LARKIN H. BROWN. GEORGIE E. REPASS.

